There Are Three Main Types Of Fillers For Sofas

A, Soft polyurethane foam (commonly known as sponge): sponges used for sofa filling are mainly divided into three categories: conventional sponge is a kind of sponge generated by conventional polyether and TDI as the main body. The characteristics are good resilience, softness, and breathability; High rebound sponge is a type of sponge mainly composed of active polyphosphate and TDI, characterized by excellent mechanical properties and good elasticity. High compression load, flame resistance, and good breathability; Random hole sponge is a type of sponge similar to natural seaweed with varying sizes of inner holes. Its characteristics are good elasticity and buffering during compression and rebound.
B, Down filling material: Down is used as a sofa filling material, providing a comfortable sitting experience and minimal deformation during long-term use. The disadvantage is slow rebound and high cost. Generally used in conjunction with sponge in high-end sofas, or suitable for use as cushions.
C, Artificial cotton filling material: Artificial cotton is used as a sofa filling material, which provides a comfortable sitting experience, but has poor mechanical properties and low compression load, making it only suitable for use as a cushion. The selection of filling materials for sofas varies greatly depending on the type of filling material used. In general, the cushion filling material for fabric sofas should use high resilience sponge with a weight of 30 kg/cubic meter or more. In terms of form, it is mostly filled with a whole piece of sponge. The best form is to use high resilience sponge with a weight of 30 kg/cubic meter or more, as well as random hole sponge combined with down or artificial cotton to increase comfort and service life. When choosing, it is important to inquire about the type of filling material. If the filling material is sponge, it is necessary to understand the density of the sponge used, feel the rebound effect of the seat cushion with gravity, and feel the comfort of sitting.
Generally, sponge seat cushions are used, with a national standard of 25KG/M3 and an international standard of 35KG/M3. Bottom structure, high elasticity snake spring structure is superior to bandage structure, high-quality bandage is better than inferior bandage structure, can quickly rebound after long-term compression, restore to its original state, without deformation or collapse.